Tare da ci gaba da ci gaban kimiyya da fasaha,polymer robobisun sami babban nasara, yin kayan gini na mutane da kayan rayuwa bisa wuya da sauri zuwa taushi.
1.Ma'anarsa
Babban sassan napolymer robobisune mafi yawan mahadi na polymer, wanda nauyin kwayoyin su ya kai kimanin 1 000, wanda shine kawai don ra'ayi na jiki.A halin yanzu, ana amfani da robobi na polymer ko'ina, amma amfanin yau da kullun na filastik ana haɗa shi ta hanyar mahaɗan polymer, yawanci ana kiransa high ko macromolecule, an haɗa shi ta hanyar albarkatun ƙasa na monomer ko albarkatun ƙasa cikin kayan haɗin gwiwa, kuma ta hanyar haɓakawa daga baya, da guduro fusion. launi, stabilizer da sauran additives.Ana iya canza siffar filastik polymer kyauta kuma ana iya tsara shi bisa ga buƙatun mai amfani.
2.Halayen
Polymer robobi ba kawai suna da nasu na musamman ba, wato, canje-canje na sabani a cikin siffar, amma har ma suna da danko.Polymer filastik, idan an sa shi ga sojojin waje, jikinsa zai haifar da nakasar nakasa mai tsayi, kwararar danko, nakasar filastik polymer galibi yana da alaƙa da lokaci.Bugu da ƙari, filastik polymer kuma yana da ƙayyadaddun ƙayyadaddun ƙarfi, ƙarancin ƙarfi da sauran halaye, ƙarfin filastik polymer gabaɗaya ƙasa ne, amma ƙarancinsa yana ƙasa, don haka ƙarfin ya zama mafi girma.Polymer yana da halaye da yawa, irin su babban kwanciyar hankali, juriya mai ƙarfi, haɓakawa, babban rufi, don haka ana amfani da shi sosai a fannoni daban-daban, da yardar mutane da yawa.
Nau'o'in robobin polymer ma sun bambanta.A halin yanzu, rarrabuwar makirci na Polymer a China sun hada da kashi bakwai: roba, kayan kwalliya na polymer, roba, zaruruwa da robobi.
a.Roba.
Farashin sarkar kwayoyin roba karami ne, m, wannan daga mahangar fannin kimiyyar lissafi ne.Rubber tare da girman ƙarfin waje zai canza siffarsa, tare da rashin kwanciyar hankali, idan an cire ƙarfin waje, za a iya dawo da ainihin yanayin roba da sauri.
b.Polymer m.
Abubuwan mannewa na mannen polymer sun fi yawa mahadi na halitta.A aikace, yawanci yakan kasu kashi biyu: na halitta, mannen roba.Mafi yawan amfani da shi shine m roba.
c.polymer shafi.
Babban abubuwan da ake amfani da su na suturar polymer galibi ana yin su ne ta hanya mai sauƙi, galibi suna ƙara kaushi ko ƙari a cikin tsarin samarwa.Rufin polymer ya kasu kashi 3 galibi, wato maiko, guduro na roba da guduro na halitta, galibi ana amfani da su a rayuwar yau da kullun.
d.kayan polymer.
Abubuwan da aka saba amfani da su na nauyin nauyin kwayoyin halitta sun haɗa da babban enzyme na kwayoyin halitta da manyan kayan aikin gaskiya.Kayan polymer suna da wasu ayyuka: makamashi, abu, fassarar bayanai, watsawa da maganadisu.
e.zaren.
Fiber ya zama ruwan dare a cikin rayuwar yau da kullun, yawanci ya kasu kashi biyu: fiber na halitta da fiber na sinadarai.Fiber yana da halayen ƙananan ƙarfin nakasawa, ƙaramin ƙarfin valence na sakandare da babban ma'auni a cikin ra'ayi na zahiri.
f.Filastik.
Filastik wani nau'i ne na kayan da ake AMFANI da su a halin yanzu, kuma shine mafi yawan kayan.Babban abubuwan da ke cikin robobi galibi su ne resins na roba, polymers na halitta, da kuma haɗa wasu abubuwan ƙari, kamar su filastik, filaye da sauransu.Filastik gabaɗaya ya dogara ne akan guduro na roba, don haka ana iya raba shi zuwa filastik thermosetting, thermoplastic.
3. Kaddarorin jiki
Gabaɗaya, idan filastik polymer sanya a cikin yanayin isothermal, mai sauƙin samar da samfurin.A cikin ainihin aiki, zafin jiki na crystallization ba daidai ba ne.Idan bambancin zafin jiki na crystallization yana da girma, zai shafi tsarin crystallization.A lokaci guda kuma, ana samun babban damuwa sau da yawa a cikin tsarin jujjuyawar jujjuyawar, shimfidar fim da ƙirƙirar extrusion, wanda ke haifar da haɓakar haɓaka samfuran.Bugu da ƙari, robobi suna amfani da fasaha a cikin damuwa mai ƙarfi.Kuma a ƙarƙashin rinjayar danniya mai ƙarfi, narke zai samar da lu'ulu'u masu fibrous tsayi.Mafi girma da damuwa da ƙananan ƙima sune, mafi tsayin sarƙoƙi kuma mafi girma wurin narkewa.
4. Chemical Properties
Gabaɗaya magana, idan an sanya robobin polymer a cikin matsanancin damuwa da yanayin zafi mai girma, tsarin ƙwayoyin cuta zai sami wasu canje-canje.A cikin wannan halayen, robobi na polymer yawanci suna sakin abubuwa masu lalacewa masu yawa, don haka suna sakin abubuwa masu cutarwa.Don wannan karshen, a cikin aiki ya kamata a bayyana alamun albarkatun kasa, zaɓi kayan albarkatun ƙasa masu inganci.A lokaci guda, ana iya ƙara ƙaramin adadin antioxidant da stabilizer a cikin dabara don haɓaka aikin rigakafin lalata na polymer.
Lokacin aikawa: Yuli-16-2019